Syringe.



J. L. FISHER. SYRINGE. LRILIOATION 211.111 MAR. so, 1906.

964,903, Patented July 19, 1910.

c K M Witnesses M JOHN LEROY FISHER, 0F PROVIDENCE, RHODE ISLAND.

SYRINGE.

Specification of Letters Patent.

Patented July 19, 1910.

Application filed March 30, 1908. Serial N 0. 424,278.

To all whom it may concern:

Be it known that I, JOHN LEROY FIsHER, a citizen of the United States,residing in the city and county of Providence, in the State of RhodeIsland, have invented certain new and useful Improvements in Syringes,of which the following is a speolfication.

My invention relates more particularly to improvements in nozzles forvaginal syringes, and the purpose of my invent on 1s to provide avaginal syringe nozzle of simple construction, easily cleansed andsterilized and at all times aseptic.

To these ends my invention consists in the novel construction,combination and arrangement of parts hereinafter more fully describedand shown in the accompanying drawings, in which,

Figure 1 is a perspective view of the nozzle. Fig. 2 is a longitudinalcentral section. Fig. 3 is an end View. Fig. 4 is a perspective partsectional View showing a modification of my invention.

Similar letters of reference refer to like parts throughout thedrawings.

A represents the discharge-tube of the nozzle which has, as shown, alongitudinal bore of uniform diameter open at both ends. The. rearwardend being hereinafter termed the intake, and the forward end beingtermed the discharge end. In the faces of each end I drill or otherwiseform a series of concentrically arranged longitudinally extending holes,a, a, around and parallel with the bore of the tube, as shown.

B, B, represent longitudinal wires concentrically arranged around saidtube A and rigidly secured thereto by each of their ends, which are, asshown, reversed or turned inwardly toward each other and inserted in theholes a, a, and therein immovably secured. These wires B, B, areslightly curved outwardly so that when secured in position around thetube A to form the nozzle the whole will practically be of the form ofthe middle frustum of a circular spindle, whereby the nozzle may be moreeasily introduced into the va ina and the walls of the latter more eectually distended thereby insuring a more thorough washing andcleansing of the same. Said wires B, B, are, as shown, longer than saidtube A, and when their ends are secured in the holes a, a, as shown anddescribed, the bent portion of the Wires form bows at each end of thetube, which enable me to dispense with the collar at the rear end of thetube, common to many forms of nozzle, and said bent ends are therebyadapted to serve as protective guards at the forward end of the tube,while at both ends of the tube they serve as preventives of the lodgmentof extraneous matter.

It will be noted that in the construction shown and described hereinthere are no corners or places for extraneous matter to lodge in andthat consequently the syringe nozzle is at all times aseptic, and thatit can readily and easily be sterilized and cleansed. Furthermore thenozzle being integral there are no parts to become disarranged ordetached; the nozzle is at all times ready for use.

In Fig. 4 I have shown a form of my invention in which the intake-end orcoupling to which the tube from the injector is to be attached isseparable from the nozzle. This coupling A is provided with means, as Afor the securing of the connecting tube thereon. The collar or rib Amay, in either form of the nozzle, be dispensed with and the end of thedischarge tube may be tapered or otherwise fitted to engage with andhold the connecting-tube end. In the form shown in Fig. t the wires B,B, are secured in the opposite ends of the discharge tube, in the holesa, a, the couplin A taking the place of the rear extension of the tubeA.

I claim:

1. A syringe nozzle consisting of a discharge tube having a longitudinalbore of uniform diameter extending therethrough from end to end, saidtube provided in each of its ends with an annular series oflongitudinally extending holes, the respective holes in one of said endsalined with the corresponding hole in the opposite end of said tube, incombination with a plurality of convexly curved wires, each longer thansaid tube, arranged in a concentric series in 1011- gitudinalparallelism with the body of said tube, and each provided with inwardlybent ends arranged and adapted to be rigidly secured in the holes insaid tube ends to thereby form an integral nozzle of the form of themiddle frustum of a circular spindle.

2. In a syringe-nozzle, the combination with a discharge-tube having ineach of its ends a series of longitudinally extending holes arrangedconcentrically with the bore of said tube, of a plurality oflongitudinally extending Wires convexly curved and arranged 1nparallelism with the exterior of I middle frustuin of a circular spindleand means for connecting said tube to an insaid tube, and each saidWires provided at jector.

its opposite ends With an inwardly bent end arranged and adapted to berigidly seclired in said holes in the tube ends to thereby form anintegral nozzle Of the form of the J. LEROY FISHER. Witnesses.

HENRY MARSH, J11, STANLEY A. BERRY.

